package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.atguigu.servicebase.config.exceptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import io.swagger.models.auth.In;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author atguigu
 * @since 2021-06-17
 */
@Api(description="讲师管理")
@RestController
@CrossOrigin
@RequestMapping("/eduservice/edu-teacher")
public class EduTeacherController {

    @Autowired
    private EduTeacherService eduTeacherService;

    @ApiOperation(value = "所有讲师列表")
    @GetMapping("/list")
    public R list(){
        try {
            //int a = 10/0;
        }catch (Exception e){
           // throw new GuliException(2001,"执行了自定义异常处理");
        }
        List<EduTeacher> eduTeacherList = eduTeacherService.list(null);
        return  R.ok().data("key",eduTeacherList);
    }

    @ApiOperation(value = "根据ID逻辑删除讲师")
    @DeleteMapping("/{id}")
    public R removeById(@ApiParam(name = "id", value = "讲师ID", required = true) @PathVariable String id){
       Boolean flag = eduTeacherService.removeById(id);
       if (flag){
         return R.ok();
       }else {
         return  R.error();
       }
    }

    //分页查询方法
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,@PathVariable long limit) {
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);
        //调用方法实现分页
        //调用方法时，底层会将分页分中的所有数据封装到pageTeacher对象里面
        eduTeacherService.page(pageTeacher,null);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
        return R.ok().data("total",total).data("rows",records);
    }

    //条件查询带分页的方法(使用requestBody必须要使用PostMapping)
    @PostMapping(value = "pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit,@RequestBody(required = false) TeacherQuery teacherQuery){
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);
        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
        //多条件组合查询 mybatis使用动态sql
        String name = teacherQuery.getName();
        Integer level  = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        //判断条件值是否为空，如果不为空拼接条件
        if (!StringUtils.isEmpty(name)){
            //构建条件
            wrapper.like("name",name);
        }
        if (!StringUtils.isEmpty(level)){
            wrapper.eq("level",level);
        }
        if (!StringUtils.isEmpty(begin)){
            wrapper.ge("gmt_create",begin);
        }
        if (!StringUtils.isEmpty(end)){
            wrapper.le("gmt_create",end);
        }
        //排序
        wrapper.orderByDesc("gmt_create");

        //调用方法实现条件查询分页
        eduTeacherService.page(pageTeacher,wrapper);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
        return R.ok().data("total",total).data("rows",records);
    }

    //添加讲师接口的方法
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = eduTeacherService.save(eduTeacher);
        if (save){
            return  R.ok();
        }else {
            return R.error();
        }
    }

    //根据讲师id进行查询
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id){
        EduTeacher eduTeacher = eduTeacherService.getById(id);
        return  R.ok().data("teacher",eduTeacher);
    }

    //讲师修改功能
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher){
        boolean flag = eduTeacherService.updateById(eduTeacher);
        if (flag){
            return  R.ok();
        }else {
            return R.error();
        }
    }






}

